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Effect of Removed Squares and Flowers of Cotton (Gossypium hirsutum L.) III. Changes in Flowering and Shedding Pattern

Year 2016, , 71 - 81, 27.10.2016
https://doi.org/10.29050/harranziraat.259098

Abstract

This study was conducted to determine the effects of squares and flowers removal on flower distribution on plant, flowering pattern, square and flower shedding rates and boll retention rate of cotton plant (Gossypium hirsutum L.). Field experiments were conducted at research field of the Harran University Faculty of Agriculture, Department of Field Crops in years of 1998 and 1999 at southeastern of Turkey. Experiments were arranged in completely randomized block design with four replications. The Sayar 314 cotton (G. hirsutum L.) variety was used as plant material.  Squares were removed through first two weeks of squaring (SR1-2), and flowers were removed with two weeks intervals from flowering initiation to the end of the tenth week of flowering (FR1-2, FR3-4, FR5-6, FR7-8, FR9-10) and control. Effects of removal treatments on investigated traits were different. In general, effects of FR7-8 and FR9-10 were similar to control on most of the investigated traits. SR1-2, FR1-2 and FR3-4, have changed the flowering pattern and plants reached peak flowering later than control and addition to these treatments FR5-6 has lightened or perevented cut-out, too. Square and flower removals increased the numbers of square and flower in both years. Square numbers were increased from 78.6 to 84.9 and 79.0 to 86.1  per plant by SR1-2 in 1998 and 1999, respectively. Flower numbers increased from 58.38 to 65.00 and 59.53 to 65.30 per plant in FR3-4, in 1998 and 1999, respectively. Square shedding rate was reduced by removal treatments. Boll retention rate was increased by removal treatments. Also, percentage of flower and shedding square, and boll retention rate on positions of fruiting branches were affected by removal treatments. 

References

  • Abrina, Y.L., Cosico, V.B., 1987. Fruiting potentials of five cotton varieties. Cotton Research and Development Inst., Batac, Ilocos Norte (Philippines). Technical Report CY [Calendar Year]. Batac, Ilocos Norte (Philippines). p. 302-307.
  • Bahtt, J.G., 1990. Flowering of cotton as affected by long days. Journal of the Indian Society for Cotton Improvement, 15(2): 107-113.
  • Dinç, U., Şenol, M., Sayın, S., Güzel, N., 1988. Güneydoğu Anadolu Bölgesi Toprakları I. Harran Ovası. TÜBİTAK Tarım ve Ormancılık Araştırma Projesi Kesin Raporu, Proje No: TOAG-534, Adana.
  • Ehlig, C.F., Lemert, R.D., 1973. Effects of fruit load temperature and relative humidity on boll retention of cotton. Crop Science, 13: 168-171.
  • Frejtag, A.H., Coleman, E.A., 1973. Effect of multiple application of 2,3,5, Triiadobenzoic Acid (TIBA) on yield of stroomproof and nonstroomproof cotton. Agronomy Journal, 65: 610-612.
  • Guinn, G., 1985. Abscissic Acid and Cutout in Cotton. Plant Physiology, 77: 16-20.
  • Guinn, G., Mauney, J.R., 1984. Fruiting of cotton. I. Effects of moisture status on flowering. Agronomy Journal , 76: 90-94.
  • Jenkins, J.N. , McCarty, Jr.J.C., Parrott, W.L., 1990. Fruiting efficency in cotton: Boll size and boll set percentage. Crop Science, 30: 857-860.
  • Kennedy, C.W., Smith, W.C.Jr., Jones, J.E., 1986. Effect of early season square removal on three leaf types of cotton. Crop Science, 26: 139-144.
  • Kletter, E., Wallach, D., 1982. Effects of fruiting form removal on cotton reproductive development. Field Crops Research, 5(1): 69-84.
  • Mauney, JR., Guinn, G., Fry, KE. , 1980. Analysis of increases of flowers in moisture stressed cotton. Beltwide Cotton Production Research Conferences Proceedings [Brown, J.M. (Editor)]. National Cotton Council of America; Memphis; USA. p.
  • Patterson, L.L., Buxton, D.R., Briggs, R.E., 1978. Fruiting in cotton as affected by controlled boll set. Agronomy Journal, 70: 118-122.
  • Singh, J.P., Lakra, R.K., Ooi, Pac., Lim, G.S., Teng, P.S., 1992. Effect of incidence of leafhopper and bollworms on shedding of fruiting bodies and loss in yield of seed cotton. Proceedings of the 3rd International Conference on Plant Protection in the Tropics., 6:142-148.
  • Stewart, M., Hake, K., Oosterhuis, D., Kerby, T., Mauney, J., Timpa, J., 1992. Cotton fruit development the square. Cotton Physiology Today Newsletter of the Cotton Physiology Education Program, Natıonal Cotton Councıl, 4:1 June, 1992.
  • Ungar, E.D., Wallach, D., Kletter, E., 1987. Cotton response to bud and boll removal. Agronomy Journal, 79: 491-497.
  • Verhalen, L.M., Mamaghani, R., Morrison, W.C., New, R.W.Mc., 1975. Effects of blooming date on boll retention and fiber properties in cotton. Crop Science, 15: 47-52.

Pamukta Tarak ve Çiçek Uzaklaştırmanın Etkisi : III. Çiçeklenme ve Silkme Düzeni

Year 2016, , 71 - 81, 27.10.2016
https://doi.org/10.29050/harranziraat.259098

Abstract

Bu çalışma, 1998 ve 1999 yıllarında, pamukta (Gossypium hirsutum L.) tarak ve çiçek uzaklaştırmanın
çiçeklenme düzeni, tarak ve çiçek silkme oranı ve koza tutma oranı üzerine etkisinin saptanması
amacıyla, HR.Ü. Ziraat Fakültesi Tarla Bitkileri Bölümü araştırma alanında, tesadüf blokları deneme
deseninde dört tekrarlamalı olarak yürütülmüştür. Bitki materyali olarak, Sayar 314 pamuk çeşidi
kullanılmıştır. Çalışmada, taraklanma başlangıcından itibaren iki hafta boyunca oluşan tarakların (SR1-2),
çiçeklenme dönemi başlangıcından başlayarak 10 hafta boyunca, ikişer hafta süreyle oluşan çiçeklerin
(FR1-2, FR3-4, FR5-6, FR7-8, FR9-10) uzaklaştırılması ve Kontrol olmak üzere 7 konu uygulanmıştır.
Generatif organ uzaklaştırmanın incelenen özelliklere etkisi farklı olmuştur. Genel olarak, FR7-8 ve FR9-
10’un etkileri diğer uygulamalara göre kontrola benzer olmuştur. SR1-2, FR1-2 ve FR3-4 çiçeklenme
düzenini değiştirmiş ve kontrolden daha geç çiçeklenme pik yapmıştır, ayrıca bu uygulamalara ek olarak
FR5-6 uygulamalarında cut-out dönemi hafif olmuş veya önlenmiştir. Tarak ve çiçek uzaklaştırmalar her
iki yılda da tarak ve çiçek sayısını artırmıştır. Tarak sayısı, SR1-2 uygulamasında 1998 ve 1999 yıllarında,
sırasıyla bitki başına 78.6’den 84.9’a ve 79.0’dan 86.1’a artmıştır. Çiçek sayısı, FR3-4 uygulamasında, 1998 ve 1999 yıllarında, sırasıyla bitki başına 58.38’den 65.00’a ve 59.53’den 65.30’a yükselmiştir. Tarak
silkme oranı, uzaklaştırma uygulamalarına bağlı olarak azalmıştır. Koza tutma oranı ise, uzaklaştırma
uygulamalarına bağlı olarak artmıştır. Aynı zamanda, tarak ve çiçek silkme oranı ve meyve dallarına göre
koza tutma oranı uzaklaştırma uygulamalarından etkilenmiştir.

References

  • Abrina, Y.L., Cosico, V.B., 1987. Fruiting potentials of five cotton varieties. Cotton Research and Development Inst., Batac, Ilocos Norte (Philippines). Technical Report CY [Calendar Year]. Batac, Ilocos Norte (Philippines). p. 302-307.
  • Bahtt, J.G., 1990. Flowering of cotton as affected by long days. Journal of the Indian Society for Cotton Improvement, 15(2): 107-113.
  • Dinç, U., Şenol, M., Sayın, S., Güzel, N., 1988. Güneydoğu Anadolu Bölgesi Toprakları I. Harran Ovası. TÜBİTAK Tarım ve Ormancılık Araştırma Projesi Kesin Raporu, Proje No: TOAG-534, Adana.
  • Ehlig, C.F., Lemert, R.D., 1973. Effects of fruit load temperature and relative humidity on boll retention of cotton. Crop Science, 13: 168-171.
  • Frejtag, A.H., Coleman, E.A., 1973. Effect of multiple application of 2,3,5, Triiadobenzoic Acid (TIBA) on yield of stroomproof and nonstroomproof cotton. Agronomy Journal, 65: 610-612.
  • Guinn, G., 1985. Abscissic Acid and Cutout in Cotton. Plant Physiology, 77: 16-20.
  • Guinn, G., Mauney, J.R., 1984. Fruiting of cotton. I. Effects of moisture status on flowering. Agronomy Journal , 76: 90-94.
  • Jenkins, J.N. , McCarty, Jr.J.C., Parrott, W.L., 1990. Fruiting efficency in cotton: Boll size and boll set percentage. Crop Science, 30: 857-860.
  • Kennedy, C.W., Smith, W.C.Jr., Jones, J.E., 1986. Effect of early season square removal on three leaf types of cotton. Crop Science, 26: 139-144.
  • Kletter, E., Wallach, D., 1982. Effects of fruiting form removal on cotton reproductive development. Field Crops Research, 5(1): 69-84.
  • Mauney, JR., Guinn, G., Fry, KE. , 1980. Analysis of increases of flowers in moisture stressed cotton. Beltwide Cotton Production Research Conferences Proceedings [Brown, J.M. (Editor)]. National Cotton Council of America; Memphis; USA. p.
  • Patterson, L.L., Buxton, D.R., Briggs, R.E., 1978. Fruiting in cotton as affected by controlled boll set. Agronomy Journal, 70: 118-122.
  • Singh, J.P., Lakra, R.K., Ooi, Pac., Lim, G.S., Teng, P.S., 1992. Effect of incidence of leafhopper and bollworms on shedding of fruiting bodies and loss in yield of seed cotton. Proceedings of the 3rd International Conference on Plant Protection in the Tropics., 6:142-148.
  • Stewart, M., Hake, K., Oosterhuis, D., Kerby, T., Mauney, J., Timpa, J., 1992. Cotton fruit development the square. Cotton Physiology Today Newsletter of the Cotton Physiology Education Program, Natıonal Cotton Councıl, 4:1 June, 1992.
  • Ungar, E.D., Wallach, D., Kletter, E., 1987. Cotton response to bud and boll removal. Agronomy Journal, 79: 491-497.
  • Verhalen, L.M., Mamaghani, R., Morrison, W.C., New, R.W.Mc., 1975. Effects of blooming date on boll retention and fiber properties in cotton. Crop Science, 15: 47-52.
There are 16 citations in total.

Details

Journal Section Araştırma Makaleleri
Authors

Tuncay Demirbilek This is me

Abdulhabip Özel

Mustafa Oğlakçı This is me

Publication Date October 27, 2016
Submission Date June 22, 2016
Published in Issue Year 2016

Cite

APA Demirbilek, T., Özel, A., & Oğlakçı, M. (2016). Pamukta Tarak ve Çiçek Uzaklaştırmanın Etkisi : III. Çiçeklenme ve Silkme Düzeni. Harran Tarım Ve Gıda Bilimleri Dergisi, 20(2), 71-81. https://doi.org/10.29050/harranziraat.259098

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